> For example, transportation costs are $9000/year and housing is $20000/year. These are both way more than is necessary.
Even on the smaller things. "Internet & Mobile" for where I am jumped out to me. Based on the difference between 1 adult and 2 adults, it's $582 per person-year for mobile (which I guess isn't far off if you get a good new phone every 2 years, it's reasonable enough) and with that subtracted, internet is $100 per month. The methodology page says "County-level data on the cost of internet comes from research on lowest-cost monthly plans from BroadbandNow", but even that page shows much cheaper options available (including the $70 per month Google Fiber I have).
Even on the smaller things. "Internet & Mobile" for where I am jumped out to me. Based on the difference between 1 adult and 2 adults, it's $582 per person-year for mobile (which I guess isn't far off if you get a good new phone every 2 years, it's reasonable enough) and with that subtracted, internet is $100 per month. The methodology page says "County-level data on the cost of internet comes from research on lowest-cost monthly plans from BroadbandNow", but even that page shows much cheaper options available (including the $70 per month Google Fiber I have).